Back during the Cold War, the military wanted to find out if LSD could be used to incapacitate enemy forces. So they administered the drug to unsuspecting British soldiers, and sent the squaddies off to perform their duties. This short video, which is as hilarious as it is disturbing, chronicles the British soldiers' hapless attempt to complete a military exercise while completely tripping balls.

The British weren't the only country to conduct such experiments. Back during the 1950s, the U.S. Army conducted experiments with soldier volunteers at its Edgewood, MD arsenal. These experiments lasted until 1972, in which soldiers were given synthetic marijuana, LSD and two dozen other psychoactive drugs — all with the intent of developing chemical weapons to debilitate enemy soldiers.